| Domain | Date |
| 0.amazon.pool.ntp.org | 2021-06-13 |
| 0.debian.pool.ntp.org | 2020-12-14 |
| 0.pool.ntp.org | 2020-09-14 |
| 3.pool.ntp.org | 2020-05-23 |
| 1.pool.ntp.org | 2020-03-07 |
| 2.europe.pool.ntp.org | 2019-09-25 |
| 2.android.pool.ntp.org | 2019-09-10 |
| 1.europe.pool.ntp.org | 2019-09-07 |
| 2.pool.ntp.org | 2019-08-31 |
| t1.hshh.org | 2019-08-12 |
| pool.ntp.org | 2019-08-07 |
| europe.pool.ntp.org | 2019-07-22 |